When performing the koeo self test in getting code 55. Car will start but wont idle very well and dies if I let off the throttle. Once moving though car is fine I can set cruise control and everything is good. This leads me to believe the ECM is fine. Has anyone else experienced this code?. To try and resolve the idle issue ive fixed all vacuum leaks. Replaced the MAF, cleaned the IACV ive even replaced the fuel pump and filter since the pump was super loud. Is there any thing else I should check? Is the ECM dead?
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